This week's Book Giveaway is Jane Mayer's Dark Money: The Hidden History of the Billionaires Behind the Rise of the Radical Right, which I read and enjoyed during my recent vacation. (There's nothing to beguile away a three-hour-long ferry ride like reading about the political fixations of creepy billionaires, in my opinion.) A full review will follow shortly.

As always, this contest runs Monday through Friday. To enter, just send us an e-mail connected to a valid address. Complete rules and regulations can be found here.